# SDR ASAA2017092122005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2017
- Submitted: September 25, 2017
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 35,274 hours, 10,808 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 4082260939
- Part serial: 99081852
- Condition: Faulted
- Location: Cockpit
- Part time: 58,190 hours, 27,427 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017092122005

## Discrepancy

DURING CRUISE FLIGHT AT FL360, AUTOPILOT A DISCONNECTED. AIRCRAFT WAS IN PERFECT TRIM. WEATHER WAS CLEAR AND SMOOTH WITH A LEFT CROSS WIND OF 130KTS.  ACFT GROUNDED.   WHILE ACCOMPLISHING DFCS BITE, FOUND FAULT MESSAGE 22-1167 & MESSAGE 22-11627, LAST FLT REVIEW.  REPLACED MCP WITH SERVICEABLE ONE. ACCOMPLISHED INSTALLATION TEST, & LLM MAINT TESTS, TESTS PASSED IAW AMM 22-11-34-400-801, & 22-11-34-839-001.

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